I've played the Duo,since last year and have good results with it. I've tried against the E6 this year and I like the Duo better I get basically the same results with the driver it is around the green I like the Duo better.
I put a 3.0 on my putter this year. I was thinking about replacing it but thought I'd try the 3.0 before i spent the money on a new putter. So the results have been good.
Most everyone I play with has a hybrid cars in their bag and they all like playing them. But like has been suggested before try several to find the one for you.